NCS000156_Renewal Application_20150819

Permit Coverage
Renewal Application Form
NCDENR National Pollutant Discharge Elimination System NPDES Permit Number
Stormwater Individual Permit NCS000156
Please provide your permit number in box in the upper right hand corner, complete the information in the space provided
below and return the completed renewal form along with the required supplemental information to the address indicated.
Owner Information * Address to which permit correspondence will be mailed
Owner / Organization Name: Hexion Inc.
Owner Contact: Ronald Bazinet
Mailing Address: 333 Neils Eddy Road
Riegelwood, NC 28456
Phone Number: 910-830-2757 —CEVFm
Fax Number: 910-655-9671
E-mail address: Ronald. bazinetCcbhexion.com 416 192015
Facility Information
DENR-LAND QUALITY
Facility Name:
Hexion Acme Facility STORIOVIIATER PERMITTING
Facility Physical Address:
333 Neils Eddy Road
Riegelwood, NC 28456
Facility Contact:
Tom Buller
Mailing Address:
333 Neils Eddy Road
Riegelwood, NC 28456
Phone Number:
910-274-5921
Fax Number:
910-655-9671
E-mail address:
Tom. bullerC�hexion.com
Permit Information
Permit Contact:
Tom Buller
Mailing Address:
333 Neils Eddy Road
Riegelwood, NC 28456
Phone Number:
910-274-5921
Fax Number:
910-655-9671
E-mail address:
Tom. bullerCa)hexion.com
Discharge Information
Receiving Stream:
Mill Creek and Livingstone Creek
Stream Class:
C;Sw
Basin:
Cape Fear
Sub -Basin:
Number of Outfalls:
4
Facility/Activity Changes Please describe below any changes to your facility or activities since issuance of your permit. Attached a
separate sheet if necessary.
Special Projects (manufacturing of KF Resin) was shutdown in late 2011. Oak Bark (a chernical company on the same site) shut
down production in late 2011.
CERTIFICATION
I certify that I am familiar with the
information contained in the application and that to the best of my knowledge and belief
'mple
such informatioFal
and accurate.
�Xl
Signature
Date
Print or type name of person signing above Title
SW Individual Permit Coverage Renewal
Please return this completed application form Stormwater Permitting Program
and requested supplemental information to: 1612 Mail Service Center
Raleigh, North Carolina 27699-1612

SUPPLEMENTAL INFORMATION REQUIRED FOR RENEWAL OF INDIVIDUAL
NPDES STORMWATER PERMIT
Two copies of each of the following shall accompany this submittal in order for the application
to be considered complete:
(Do not submit the site Stormwater Pollution Prevention Plan)
Initials
_ 1. A current Site Map from the Stormwater Pollution Prevention Plan. The location of
industrial activities (including storage of materials, disposal areas, process areas and
loading and unloading areas), drainage structures, drainage areas for each outfall,
building locations and impervious surfaces should be clearly noted.
2. A summary of Analytical Monitoring results during the term of the existing permit
(if your permit required analytical sampling). Do not submit individual lab reports.
The summary can consist of a table including such items as outfall number,
parameters sampled, lab results, date sampled, and storm event data.
3. A summary of the Visual Monitoring results. Do not submit individual monitoring
reports. The summary can consist of a table including such items as outfall number,
parameters surveyed, observations, and date monitoring conducted.
4. A summary of the Best Management Practices utilized at the permitted facility.
Summary should consist of a short narrative description of each BMP's in place at
the facility. If the implementation of any BMP's is planned, please include
information on these BMP's.
TS 5. A short narrative describing any significant changes in industrial activities at the
permitted facility. Significant changes could include the addition or deletion of
work processes, changes in material handling practices, changes in material storage
practices, and/or changes in the raw materials used by the facility.
6. Certification of the development and implementation of a Stormwater Pollution
Prevention Plan for the permitted facility (Sign and return attached form).
If the final year analytical monitoring of the existing permit term has not been completed
prior to filing the renewal submittal, then the last years monitoring results should be submitted
within 30 days of receipt of the laboratory reports. (i.e. do not withhold renewal submittal
waiting on lab results)

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Stormwater Visual Monitoring Results 2011-2015
Date of Monitoring
Outfalls
Parameters
Observations
Color, Odor, Clarity, Floating Solids,
Foam, Sheen, Deposition at Outfall,
Light brown color in 003 and 004,
Erosion at Outfall, Housekeeping and
Green Algae in 006, medium
7/13/2015
003,004,006,009
General Condition
clarity in 003, and 006
Color, Odor, Clarity, Floating Solids,
Light brown color in 003 and 004,
Foam, Sheen, Deposition at Outfall,
Green color in 006, medium
Erosion at Outfall, Housekeeping and
clarity and suspended solids in
6/3/2015
003,004,006,009
General Condition
006
Color, Odor, Clarity, Floating Solids,
Foam, Sheen, Deposition at Outfall,
Light color in 003 and 004, yellow
Erosion at Outfall, Housekeeping and
color in 006, pollen observed in
4/9/2015
003,004,006,009
General Condition
all outfalls
Color, Odor, Clarity, Floating Solids,
Medium color In 004, green color
Foam, Sheen, Deposition at Outfall,
in 006, Medium clarity and
Erosion at Outfall, Housekeeping and
suspended solids in 004. Trash
3/14/2015
003,004,006,009
General Condition
also observed in 004 outfall.
Color, Odor, Clarity, Floating Solids,
Tan color in 003 and 004, Yellow -
Foam, Sheen, Deposition at Outfall,
green color in 006, medium
Erosion at Outfall, Housekeeping and
clarity and suspended solids in
1/12/201S
003,004,006,009
General Condition
004, erosion at outfall 004
Color, Odor, Clarity, Floating Solids,
Foam, Sheen, Deposition at Outfall,
Light tint in 003 and 006, 004
Erosion at Outfall, Housekeeping and
brown. Medium clarity 003 and
12/22/2014
003,004,006,009
General Condition
004.
Color, Odor, Clarity, Floating Solids,
Grey color 003,light brown 004
Foam, Sheen, Deposition at Outfall,
and green 006. Medium clarity on
Erosion at Outfall, Housekeeping and
all outfalls. Suspended solids in
10/15/2014
003,004,006,009
General Condition
003, 004 and 006.
Color, Odor, Clarity, Floating Solids,
Foam, Sheen, Deposition at Outfall,
Erosion at Outfall, Housekeeping and
Light green 006. Good clarity in
7/1S/2014
003,004,006,009
General Condition
all outfalls.

Color, Odor, Clarity, Floating Solids,
Foam, Sheen, Deposition at Outfall,
Brown color on 003 and 004.
Erosion at Outfall, Housekeeping and
Yellowish green 006. medium
5/15/2014
003,004,006,009
General Condition
clarity on 003 and 004.
Brown color on 003 and 004.
Color, Odor, Clarity, Floating Solids,
Medium to poor clarity on 003,
Foam, Sheen, Deposition at Outfall,
004 and 006. Floating and
Erosion at Outfall, Housekeeping and
suspended solids 003, 004 and
4/30/2014
003,004,006,009
General Condition
006.
Color, Odor, Clarity, Floating Solids,
Foam, Sheen, Deposition at Outfall,
Light color 003, 004 and 009.
Erosion at Outfall, Housekeeping and
Yellowish light on 006. Good
3/25/2014
003,004,006,009
General Condition
clarity on all outfalls.
Color, Odor, Clarity, Floating Solids,
Foam, Sheen, Deposition at Outfall,
Brown color on 003 and 004.
Erosion at Outfall, Housekeeping and
Medium clarity on 003 and 004.
2./21/2014
003,004,006,009
General Condition
Suspended solids on 003 and 004.
Color, Odor, Clarity, Floating Solids,
Foam, Sheen, Deposition at Outfall,
Medium tint 003 and 004. Green
Erosion at Outfall, Housekeeping and
color 006.Medium clarity on 003
12/10/2013
003,004,006,009
General Condition
and 004.
Color, Odor, Clarity, Floating Solids,
Foam, Sheen, Deposition at Outfall,
Light brown color on 003 and009,
Erosion at Outfall, Housekeeping and
brown on 004.Medium clarity on
11/26/2013
003,004,006,009
General Condition
004 with suspended solids.
Color, Odor, Clarity, Floating Solids,
Light to medium tint on 003 and
Foam, Sheen, Deposition at Outfall,
004. Light green on 006. Light to
Erosion at Outfall, Housekeeping and
medium clarity on 003 and 004
9/16/2013
003,004,006,009
General Condition
with some suspended solids.
Color, Odor, Clarity, Floating Solids,
Light brown color on 003 and
Foam, Sheen, Deposition at Outfall,
green on 006. Medium clarity on
Erosion at Outfall, Housekeeping and
004 with suspended solids. Some
7/12/2013
003,004,006,009
General Condition
floating solids on 009.
Color, Odor, Clarity, Floating Solids,
Foam, Sheen, Deposition at Outfall,
Dark color on 003 and 004. Green
Erosion at Outfall, Housekeeping and
color on 006. Medium clarity on
6/3/2013
003,004,006,009
General Condition
003, 004 and 006.

Color, Odor, Clarity, Floating Solids,
Foam, Sheen, Deposition at Outfall,
Milky color on 003. Medium
Erosion at Outfall, Housekeeping and
clarity on 003 and 006 with some
5/23/2013
003,004,006,009
General Condition
suspended solids.
Color, Odor, Clarity, Floating Solids,
Dark color on 003 and 004.
Foam, Sheen, Deposition at Outfall,
Greenish tint on 006. Medium
Erosion at Outfall, Housekeeping and
clarity on 003, 004 and 006. Some
4/4/2013
003,004,006,009
General Condition
suspended solids on 003.
Color, Odor, Clarity, Floating Solids,
Foam, Sheen, Deposition at Outfall,
Dark color on 003, green tint on
Erosion at Outfall, Housekeeping and
006. Medium clarity on 003 with
3/12/2013
003,004,006,009
General Condition
some suspended solids.
Light brown color on 003, slight
green/brown color on 006.
Color, Odor, Clarity, Floating Solids,
Medium clarity on 003, 004 and
Foam, Sheen, Deposition at Outfall,
006. Floating solids on 009.
Erosion at Outfall, Housekeeping and
Suspended solids on 003, 004 and
2/7/2013
003,004,006,009
General Condition
006
Color, Odor, Clarity, Floating Solids,
Light brown color on 003 and
Foam, Sheen, Deposition at Outfall,
004. Some floating solids on 003,
Erosion at Outfall, Housekeeping and
004 and 006. Suspended solids on
1/2/2013
003,004,006,009
General Condition
004 and 006.
Color, Odor, Clarity, Floating Solids,
Light green color 006.Medium
Foam, Sheen, Deposition at Outfall,
clarity on 003, 004 and 006.Some
Erosion at Outfall, Housekeeping and
floating solids and suspended
12/12/2012
003,004,006,009
General Condition
solids on 003, 004 and 006.
Color, Odor, Clarity, Floating Solids,
Foam, Sheen, Deposition at Outfall,
Erosion at Outfall, Housekeeping and
Green color on 006. Medium
10/15/2012
003,004,006,009
General Condition
clarity on 006.
Light brown color on 004 and
Color, Odor, Clarity, Floating Solids,
green on 006. Medium clarity on
Foam, Sheen, Deposition at Outfall,
004 and 006. Suspended solids in
Erosion at Outfall, Housekeeping and
003 and 004 with high amount of
8/19/2012
003,004,006,009
General Condition
solids in 006.
Color, Odor, Clarity, Floating Solids,
Medium tint on 003 and 004,
Foam, Sheen, Deposition at Outfall,
green color on 006. Medium
Erosion at Outfall, Housekeeping and
clarity on 003 and 004. Some
7/31/2012
003,004,006,009
General Condition
suspended solids (algae) on 006.

Light brown color 003, brown on
Color, Odor, Clarity, Floating Solids,
004 and green on 006. Medium
Foam, Sheen, Deposition at Outfall,
clarity on 003, 004 and 006.
Erosion at Outfall, Housekeeping and
Floating solids on 006. Suspended
6/12/2012
003,004,006,009
General Condition
solids on all outfalls.
Color, Odor, Clarity, Floating Solids,
Foam, Sheen, Deposition at Outfall,
brown color on 004. Musty odor
Erosion at Outfall, Housekeeping and
on 003. Medium clarity on 004.
5/9/2012
003,004,006,009
General Condition
Suspende solids on 004.
Color, Odor, Clarity, Floating Solids,
Foam, Sheen, Deposition at Outfall,
Erosion at Outfall, Housekeeping and
Musty odor on 003. Medium
4/6/2012
003,004,006,009
General Condition
clarity on 004.
Color, Odor, Clarity, Floating Solids,
Foam, Sheen, Deposition at Outfall,
OK clarity on 003,004 and 006.
Erosion at Outfall, Housekeeping and
Some suspended solids on
3/3/2012
003,004,006,009
General Condition
003,004 and 006.
Color, Odor, Clarity, Floating Solids,
Foam, Sheen, Deposition at Outfall,
Erosion at Outfall, Housekeeping and
Medium clarity on 003 and 004.
1/11/2012
003,004,006,009
General Condition
Suspended solids on 003 and 004.
Color, Odor, Clarity, Floating Solids,
Foam, Sheen, Deposition at Outfall,
Erosion at Outfall, Housekeeping and
Light green color on 006. Sulfur
12/27/2011
003,004,006,009
General Condition
odor on 003.
Color, Odor, Clarity, Floating Solids,
Foam, Sheen, Deposition at Outfall,
Erosion at Outfall, Housekeeping and
Green color on 006. Musty odor
11/29/2011
003,004,006,009
General Condition
on 003.
Color, Odor, Clarity, Floating Solids,
Foam, Sheen, Deposition at Outfall,
Green tint on 006. Hydrogen
Erosion at Outfall, Housekeeping and
sulfide smell on 003. Some dirt
9/20/2011
003,004,006,009
General Condition
and suspended solids on 003.
Color, Odor, Clarity, Floating Solids,
Dirty color on 004 and green
Foam, Sheen, Deposition at Outfall,
color on 006. Medium clarity on
Erosion at Outfall, Housekeeping and
004 due to dirt and medium
6/23/2011
003,004,006,009
General Condition
clarity on 006 due to algae.

Color, Odor, Clarity, Floating Solids,
Foam, Sheen, Deposition at Outfall,
Erosion at Outfall, Housekeeping and
2/25/20111003,004,006,009 IGeneral Condition (Oil sheen observed in 009.

Summary of BMPs
There are four stormwater discharge outlets (SDOs) regulated by the NPDES permit for this site. Each
one of those SDOs has at least one structural BMP to help manage stormwater on site. The outfalls and
mechanisms are listed below:
❖ Outfall SDO-003 incorporates a vegetated swale with concrete v-notch weir;
❖ Outfall SDO-004 incorporates inlet protection and rock weirs along drainage path;
❖ Outfall SDO-006 incorporates an onsite retention pond with riser; and
❖ Outfall SDO-009 incorporates inlet protection.
On site, there are twenty tank secondary containment systems in areas that are subject to potential
product releases that provide an additional level of stormwater control. Stormwater collected from the
hexamine, special projects, and formaldehyde process areas is initially collected for re -use in the
process. If storage capacity is insufficient during periods of extended or heavy rain events, stormwater
is directed to the appropriate discharge outfall. As discussed above, stormwater collected in secondary
containment areas is checked visually and for pH before discharge to a stormwater outfall.
Hexion has several procedural management practices as well to help control stormwater, limit exposure,
and reduce the potential release of chemicals at the facility. These procedural best management
practices include engineered controls, containment of site stormwater, SPCC plan, EMP, a Preventative
Maintenance Program, continual Employee Training Programs, and routine Facility Inspections. These
practices, which include engineered controls, containment of Site stormwater, and emergency response
procedures, prevent stormwater impacts resulting from a potential or actual release. The Pollution
Prevention Team has the responsibility to inspect the facility and correct any condition that needs
attention to prevent stormwater pollution. In addition, areas around the petroleum storage tanks are
inspected monthly as part of SPCC inspection requirements.

Summary of Significant Changes to Industrial Activities
Since the last permit application, the Hexion Inc. site at 333 Neils Eddy Rd., Riegelwood, NC has looked
for ways to eliminate possible releases of oil and or chemicals. We have reduced the arnount of IBC's
(totes) containing resin or non -hazardous waste from being stored outside. The site discontinued
operation of the Special Products production unit in late 2011. In addition Oak Bark Corporation, whose
operations affected our stormwater, shutdown production in late 2011.

STORMWATER POLLUTION PREVENTION PLAN
DEVELOPMENT AND IMPLEMENTATION
CERTIFICATION
North Carolina Division of Energy, Mineral, and Land Resources - Stormwater Permitting
Facility Name: Hexion Acme Facility
Permit Number: NCS000156
Location Address: 333 Neils Eddy Road
Riegelwood, NC 28456
County: Columbus
"I certify, under penalty of law, that the Stormwater Pollution Prevention Plan (SPPP) document and all attachments were
developed and implemented under my direction or supervision in accordance with a system designed to assure that
qualified personnel properly gather and evaluate the information required by the SPPP. Based on my inquiry of the
person or persons who manaqe the system, or those persons directly responsible for gathering the information, the
information gathered is, to the best of my knowledge and belief, true, accurate and complete."
And
"I certify that the SPPP has been developed, signed and retained at the named facility location, and the SPPP has been
fully implemented at this facility location in accordance with the terms and conditions of the Stormwater discharge
permit."
And
"I am aware that there are significant penalties for falsifying information, including the possibility of fines and
imprisonment for knowing violations."
Sign (according to permit signatory requirements) and return this Certification. DO NOT
SEND STORMWATER POLLUTION PREVENTION PLAN WITH THIS CERTIFICATION.
Signature
1140AL) &abut S
Print or type name of person signing above
Date I,) j )s
Title
S o-o 1 jwg
SPPP Certification 10/13

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